People lay flowers for and mourn the anti-government protesters who were killed in the past weeks’ clashes with riot police.

A German rifleman beside the corpse of a French soldier in a trench at Fort Vaux, France, 1916. (Photo by Hulton Archive/Getty Images)

A lady smiles during the annual Calabar cultural festival in Calabar, Nigeria, December 28, 2015. Picture taken December 28, 2015. (Photo by Reuters/Stringer)

A rainbow is seen near a cloud south of Corvallis, Ore., Monday, May 19, 2014. (Photo by Andy Cripe/AP Photo/The Corvallis Gazette-Times)

Smalldog Imageworks Creative Retouching for Chick-fil-A Cows Calendar «Trail Grazers» by photographer Andy Mahr, 2011. (Photo by Andy Mahr)

We see what Ferris wheels look like when captured using a longer exposure (i.e., shutter left open, typically 2 seconds or more). The lights that adorn the Ferris Wheels blend and blur, creating brilliant patterns and beautiful photos.

3D interactive artist Joe Hill poses with one of his works as part of the VisitBritain tourism campaign at Circular Quay on September 6, 2011 in Sydney, Australia. (Photo by Mark Metcalfe/Getty Images)

A farmers carries baskets of salt during a harvest in the the salt production process August 13, 2009 in Sumenep on Madura island, Indonesia. (Photo by Ulet Ifansasti/Getty Images)